Drill chuck



FIG. 1 is a top perspective view of a drill chuck showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a cross-sectional view thereof taken along line A-A in FIG. 4;

FIG. 8 is an enlarged sectional view thereof taken along line C-C in FIG. 2 of portion B-B in FIG. 4; and,

FIG. 9 is an enlarged cross-sectional view thereof taken along line A-A in FIG. 4 that shows a length and depth of the grooves shown in FIGS. 1-3, 6, and 8. 

CLAIM The ornamental design for a drill chuck, as shown and described. 